FR780928A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number: FR780928A
Authority: FR; France
Prior art keywords: electric discharge; discharge tube; tube; electric; discharge
Prior art date: 1933-11-09
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1933-11-09

Filing date

1934-11-07

Publication date

1935-05-06

1934-11-07 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1935-05-06 Application granted granted Critical

1935-05-06 Publication of FR780928A publication Critical patent/FR780928A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
- H01J61/523—Heating or cooling particular parts of the lamp

FR780928D 1933-11-09 1934-11-07 Electric discharge tube Expired FR780928A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL433671X		1933-11-09

Publications (1)

Publication Number	Publication Date
FR780928A true FR780928A (en)	1935-05-06

Family

ID=19786175

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR780928D Expired FR780928A (en)	1933-11-09	1934-11-07	Electric discharge tube

Country Status (6)

Country	Link
US (1)	US2030445A (en)
BE (1)	BE406110A (en)
DE (1)	DE683436C (en)
FR (1)	FR780928A (en)
GB (1)	GB433671A (en)
NL (1)	NL41239C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4232360A (en) *	1978-01-11	1980-11-04	General Electric Company	Heat recovery high intensity discharge lamp constructions

0
- NL NL41239D patent/NL41239C/xx active
- BE BE406110D patent/BE406110A/xx unknown
1934
- 1934-11-07 US US751953A patent/US2030445A/en not_active Expired - Lifetime
- 1934-11-07 FR FR780928D patent/FR780928A/en not_active Expired
- 1934-11-07 DE DEN37373D patent/DE683436C/en not_active Expired
- 1934-11-09 GB GB32300/34A patent/GB433671A/en not_active Expired

Also Published As

Publication number	Publication date
US2030445A (en)	1936-02-11
DE683436C (en)	1939-11-06
GB433671A (en)	1935-08-19
NL41239C (en)
BE406110A (en)

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